/**
 * Copyright (C) 2011 GreenSoft S.A.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package ar.com.greensoft.neosystem.model;

import javax.persistence.Column;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import javax.persistence.Version;

import ar.com.greensoft.neosystem.dao.searching.EntityDto;


/**
 * Simple JavaBean domain object with an id property.
 * Used as a base class for objects needing this property.
 *
 * @author Jorge E. Villaverde
 * @since 05/06/2011
 * @version 1.0.0
 */
@MappedSuperclass
public abstract class BaseEntity implements GsEntity, EntityDto {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	@Id
	@GeneratedValue(strategy=GenerationType.TABLE)
	private Long id;
	@Version
    @Column(name = "version")
    private Integer version;
	
	public void setId(Long id) {
		this.id = id;
	}

	public Long getId() {
		return id;
	}

	public boolean isNew() {
		return (this.id == null);
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((id == null) ? 0 : id.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		BaseEntity other = (BaseEntity) obj;
		if (id == null) {
			if (other.id != null)
				return false;
		} else if (!id.equals(other.id))
			return false;
		return true;
	}

	public String toString() {
        return String.valueOf(id);
    }
	
	public Integer getVersion() {
        return this.version;
    }

	public void setVersion(Integer version) {
        this.version = version;
    }	
}
